RAPID: Tipping the Greenhouse C Balance: Hurricane Irma&#39;s Role in Increasing the Global Warming Potential in Everglades Ecosystems

GSTDTAP

项目编号	1807533
	RAPID: Tipping the Greenhouse C Balance: Hurricane Irma's Role in Increasing the Global Warming Potential in Everglades Ecosystems
	Gregory Starr
主持机构	University of Alabama Tuscaloosa
项目开始年	2017
	2017-12-01
项目结束日期	2019-11-30
资助机构	US-NSF
项目类别	Standard Grant
项目经费	197375(USD)
国家	美国
语种	英语
英文摘要	This RAPID research focuses on investigating the hurricane impacts on the carbon cycling of Everglades wetland ecosystems. Hurricane Irma resulted in extensive wind damage and the highest water levels recorded in over 20 years in the Florida Everglades. The findings and predictions that result from this study will directly address larger-scale questions about how wetland ecosystem structure and function and aquatic productivity are altered in the face of increased disturbance from hurricanes. Wetlands within Everglades National Park have been seriously impacted by extensive defoliation, disruption of periphyton mats, large inputs of carbon and nutrients into the soil and water column, and a reduction in standing dead tissue of marsh graminoids. Along with reductions in photosynthesis, these changes may alter anoxic conditions, supporting greater rates of methane production and release. This effort will focus on reductions in leaf area and how this contributes to floating mats of dead material that cause anoxic conditions and 'hotspots' for CH4 production and release of CO2 to the atmosphere. This project includes additional chamber measurements necessary to interpret 'hotspot' carbon fluxes. The broader impacts of this research result from an improved foundational understanding of how wetland systems respond to hurricanes, and the effort will provide an initial vulnerability assessment of the effects of extreme high-water levels on Everglades wetlands. This study also affords research opportunities for junior faculty and technicians from underrepresented minority groups.
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/72165
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Gregory Starr.RAPID: Tipping the Greenhouse C Balance: Hurricane Irma's Role in Increasing the Global Warming Potential in Everglades Ecosystems.2017.